# Relationship history for MSHA mine 4105440

Current hierarchy: **Rogers Group Inc → Rogers Group Inc. → Post Sand & Gravel**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Rogers Group Inc → Post Sand & Gravel; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Caprock Aggregates, LLC → Post Sand & Gravel; 2019-06-10 to 2022-11-06; source msha-controller-operator-history
- **controller_controls_mine:** Wayne  Wienecke et al → Post Sand & Gravel; 2019-06-10 to 2022-08-01; source msha-controller-operator-history
- **controller_controls_operator:** Wayne  Wienecke et al → Caprock Aggregates, LLC; 2019-06-10 to 2022-08-01; source msha-controller-operator-history
- **controller_controls_operator:** Laurie  Wienecke et al → Caprock Aggregates, LLC; 2019-06-10 to 2022-08-01; source msha-controller-operator-history
- **controller_controls_operator:** Landri  Garcia et al → Caprock Aggregates, LLC; 2019-06-10 to 2022-08-01; source msha-controller-operator-history
- **controller_controls_mine:** Laurie  Wienecke et al → Post Sand & Gravel; 2022-08-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Laurie  Wienecke et al → Caprock Aggregates, LLC; 2022-08-02 to 2022-11-06; source msha-controller-operator-history
- **controller_controls_operator:** Wayne  Wienecke et al → Caprock Aggregates, LLC; 2022-08-02 to 2022-11-06; source msha-controller-operator-history
- **operator_operates_mine:** Rogers Group Inc. → Post Sand & Gravel; 2022-11-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Rogers Group Inc → Rogers Group Inc.; 2022-11-07 to current/open; source msha-controller-operator-history